https://blog.csdn.net/whileliezh-cnhttps://blog.csdn.net/https://blog.csdn.net/whilelie/article/details/46514967https://blog.csdn.net/whilelie/article/details/46514967whilelieTue, 16 Jun 2015 10:27:07 +0800https://blog.csdn.net/whilelie/article/details/46414537https://blog.csdn.net/whilelie/article/details/46414537whilelieMon, 08 Jun 2015 16:34:51 +0800https://blog.csdn.net/whilelie/article/details/46372005https://blog.csdn.net/whilelie/article/details/46372005whilelieFri, 05 Jun 2015 09:14:22 +0800https://blog.csdn.net/whilelie/article/details/44698437https://blog.csdn.net/whilelie/article/details/44698437whilelieSat, 28 Mar 2015 08:49:48 +0800https://blog.csdn.net/whilelie/article/details/43987947https://blog.csdn.net/whilelie/article/details/43987947whilelieSat, 28 Feb 2015 17:34:02 +0800https://blog.csdn.net/whilelie/article/details/43954933https://blog.csdn.net/whilelie/article/details/43954933whilelieThu, 26 Feb 2015 17:17:59 +0800https://blog.csdn.net/whilelie/article/details/38579617https://blog.csdn.net/whilelie/article/details/38579617whilelieFri, 15 Aug 2014 07:17:07 +0800https://blog.csdn.net/whilelie/article/details/37998055https://blog.csdn.net/whilelie/article/details/37998055whilelieSun, 20 Jul 2014 22:38:31 +0800https://blog.csdn.net/whilelie/article/details/37997989https://blog.csdn.net/whilelie/article/details/37997989whilelieSun, 20 Jul 2014 22:35:23 +0800https://blog.csdn.net/whilelie/article/details/37890085https://blog.csdn.net/whilelie/article/details/37890085whilelieThu, 17 Jul 2014 00:01:00 +0800https://blog.csdn.net/whilelie/article/details/37730711https://blog.csdn.net/whilelie/article/details/37730711whilelieSat, 12 Jul 2014 23:55:26 +0800https://blog.csdn.net/whilelie/article/details/37729575https://blog.csdn.net/whilelie/article/details/37729575whilelieSat, 12 Jul 2014 22:05:28 +0800https://blog.csdn.net/whilelie/article/details/37729483https://blog.csdn.net/whilelie/article/details/37729483whilelieSat, 12 Jul 2014 22:03:16 +0800 SQL查询的完整语法 select top | distinct 字段 , 表达式 , 函数 , 标量子查询 , ... from 数据源 where 条件(一般逻辑、范围、模糊、空值) group by 字段 having 条件 order by 排序]]>https://blog.csdn.net/whilelie/article/details/37584001https://blog.csdn.net/whilelie/article/details/37584001whilelieTue, 08 Jul 2014 23:55:32 +0800查询只允许出现分组的字段或聚合函数或常量 --2.如何通过显示查询计划和执行查询计划来做代码分析。（重点） --3.聚合函数(Aggregation重点) -->聚合函数忽略空值数据（类似于老师统计班级的平均分数，他会]]>https://blog.csdn.net/whilelie/article/details/37557107https://blog.csdn.net/whilelie/article/details/37557107whilelieTue, 08 Jul 2014 07:35:07 +0800 关系型数据库基础 -> 简单介绍了SQL Server的历史 -> 关系的概念：表 -> 表的结构与数据类型 -> SQL Server的简单体系架构 -> 连接管理 -> 关系引擎 -> 存储引擎 -> 内存池 -> 数据库的简单结构(逻辑结构) -> 数据库 -> 架构 -> 表 -> 表 -> 表 ]]>https://blog.csdn.net/whilelie/article/details/37557091https://blog.csdn.net/whilelie/article/details/37557091whilelieTue, 08 Jul 2014 07:32:30 +0800https://blog.csdn.net/whilelie/article/details/36942021https://blog.csdn.net/whilelie/article/details/36942021whilelieFri, 04 Jul 2014 23:21:30 +0800https://blog.csdn.net/whilelie/article/details/36690967https://blog.csdn.net/whilelie/article/details/36690967whilelieThu, 03 Jul 2014 20:01:08 +0800https://blog.csdn.net/whilelie/article/details/36690609https://blog.csdn.net/whilelie/article/details/36690609whilelieThu, 03 Jul 2014 20:00:29 +0800 方法中的变量是要确定内存大小：引用类型 2、 对象的创建方式 MyClass m = new MyClass(); -> new创建了对象(newobj) -> 构造方法只是做了初始化 -> 首先new向操作系统申请内存 -> 计算构造方法的继承关系中所有字段的字节数. 预算满足"字节数 + 常量 + 8"满足被4整除的最小数 -> 如果操作系统内存]]>https://blog.csdn.net/whilelie/article/details/36690239https://blog.csdn.net/whilelie/article/details/36690239whilelieThu, 03 Jul 2014 19:55:42 +0800